Desalination Seawater Vacuum low Temperature

The ecological balance of the energy management, the heating portion is almost equal to zero. This is accomplished by: solar panels and / or (Cogeneration) generative, regularly uses waste heat. (Both are free, do not generate additional pollution.)
Pumping electrical loads are of the order of 0.2 to 1 bar. (2.9 to 14.5 psi)

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lundi 7 mars 2016

Desalination of seawater is a
process that provides freshwater, its usefulness is necessary well
established; its main drawback is its hunger for energy. There are two main
methods, distillation and reverse osmosis: These both techniques, booming (average energy cost (≈ 4.5 kWh / m3 /250 gal. ) are a proven systems that has shown their reliability.( Wikipedia)

Desalination
of sea water is a process that provides fresh water, its usefulness is well
established; there are two main methods, distillation and reverse osmosis; both
techniques were booming a major drawback: the cost to the operation which is
very energy-intensive. Average energy cost (≈ 4.5 kWh / m3 / 264 gallons).
(Wikipedia)

Here is a
project of desalination of sea water, which can significantly reduce the price
of the produced fresh water.

This method
is based on using a vacuum associated with seawater low boiling temperature,
about 50 ° C. (120 ° F). The condensation temperature is about 25 ° C. (77 °
F.).

Note:

Boil water at 25 ° C (77 ° F)
under vacuum is the work of the ingenious Georges Claudein 1930.

I only adapt his exploit to technology and know-how of today, defining in detail the technical feasibility
and demonstrating the economic viability of the process.

The seawater
desalination device under vacuum at low temperature, integrates science,
technology, techniques and know-how today. It is very effective in terms of
energy consumption; Pump pressure is less than 1 ≤1, 1 bar (psi ≤ 16). In
practice, it can range from 0.2 to a bar.

See the schematic drawing.

Operation:

Sea water pumps 1; the seawater filter 2; sea ​​water tank 3; (No
significant change, with conventional devices). Fluid in the circuit 7, powered by solar panels and / or cogeneration
systems; Pump 8 has lead the cold sea water to the tank 4, via condensation
tank 5; seawater pump 12 expelling the concentrated salt water back to the sea
and / or the crystallization apparatus (product of salt of very good quality).